Inquiry (采购产品): Oven High Temperature IR viewing Sapphire window Do you manufacture fabricated sapphire windows suitable for sensing inner oven IR temperature and methane gas detection? We need 3.25" and 5.25" diameter mounted components with guaranteed 3" and 5" diameter optical viewing area. The window will be mounted in an over whose internal wall temperature may reach 2000F and outer wall at room temperature. Please quote availability and price. Thanks Avygdor Moise **** Hidden Message ***** Avygdor Moise 303-6707 Elbow Drive S.W. Calgary, AB Canada CAN Company: Future DOS R&D Inc. Title: C.T.O. Phone: 403 616 8634 Fax: 403 203 7071 E-mail: avy@fdos.ca **** Hidden Message ***** avy@fdos.ca